MTN Not Provisioning Data And Ignoring The Issue

Every single month since renewing my contract, MTN have been neglecting to provision my data. I have been escalating this monthly and all queries have been blatantly ignored. I have numerous ref numbers. They spin me stories about using two systems and one not knowing what the other is doing. There have been numerous months were I even got tired of fighting for it and therefore never received it. Even the person at the store has been trying to escalate it to no avail. The superior people are always unavailable and never return calls. MTN do NOT have any issues taking my money monthly but always have issues delivering on what my contract entitles me to. I see this as Breach of Contract and I'm trying to seek legal advice. if they cannot and will not rectify a problem in about 10 months, why should I deal with them. All the members of my family and myself have multiple contracts (8 in total) with MTN since 1998 and this is the respect that we are treated with. If they treat clients of 17 years in this manner, what respect do they have for new clients? If their own staff from the store cannot make headway, how is the person on the street supposed to? MTN - My Thieving Network ......